(19)

(11)

EP 1 572 778 A2

(12)

(88) Date of publication A3: 26.08.2004 (43) Date of publication: 14.09.2005 Bulletin 2005/37 (21) Application number: 03808428.1 (22) Date of filing: 03.12.2003

(51) International Patent Classification (IPC)7: C08G 75/02, C08G 75/10, C07D 339/06, C07D 339/08 (86) International application number: PCT/US2003/038319 (87) International publication number: WO 2004/060971 (22.07.2004 Gazette 2004/30)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 20.12.2002 US 435537 P 02.12.2003 US 725023 (71) Applicant: PPG Industries Ohio, Inc. Cleveland, OH 44111 (US)	(72) Inventors: BOJKOVA, Nina Monroeville, PA 15146 (US) SMITH, Robert A. Murrysville, PA 15668 (US) (74) Representative: Sternagel, Fleischer, Godemeyer & Partner  Braunsberger Feld 29 51429 Bergisch Gladbach 51429 Bergisch Gladbach (DE)